/Engine/Plugins/Online/OnlineServices/Source/OnlineServicesCommon/Public/Online/CommerceCommon.h
Fires whenever a purchase is completed
virtual [TOnlineEvent](API\Plugins\OnlineServicesInterface\Online\TOnlineEvent)< void(const [FCommerceOnPurchaseComplete](API\Plugins\OnlineServicesInterface\Online\FCommerceOnPurchaseComplete) &)> OnPurchaseCompleted()